The highest points in the community are about AMSL. Altitudes range from about 2,600 to . Temperatures range from the 20–30 °F in winter to 80–90 °F in the summer. Groveland has Tenaya Elementary School (grades K–8) and Tioga High School (grades 9–12), part of the Big Oak Flat-Groveland Unified School District. Columbia College (California) is about down the hill in Columbia, from Sonora (about from Groveland). Geography According to the United States Census Bureau, the CDP covers an area of 19.3 square miles (49.9 km2), 19.0 square miles (49.1 km2) of it land and 0.3 square miles (0.7 km2) of it (1.46%) water. Demographics The 2010 United States Census reported that Pine Mountain Lake had a population of 2,796. The population density was . The racial makeup of Pine Mountain Lake was 2,596 (92.8%) White, 18 (0.6%) African American, 25 (0.9%) Native American, 24 (0.9%) Asian, 7 (0.3%) Pacific Islander, 21 (0.8%) from other races, and 105 (3.8%) from two or more races. Hispanic or Latino of any race were 183 persons (6.5%). The Census reported that 2,796 people (100% of the population) lived in households, 0 (0%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized. There were 1,346 households, out of which 200 (14.9%) had children under the age of 18 living in them, 776 (57.7%) were opposite-sex married couples living together, 84 (6.2%) had a female householder with no husband present, 44 (3.3%) had a male householder with no wife present. There were 66 (4.9%) unmarried opposite-sex partnerships, and 7 (0.5%) same-sex married couples or partnerships. 369 households (27.4%) were made up of individuals, and 216 (16.0%) had someone living alone who was 65 years of age or older. The average household size was 2.08. There were 904 families (67.2% of all households); the average family size was 2.45. The population was spread out, with 372 people (13.3%) under the age of 18, 95 people (3.4%) aged 18 to 24, 340 people (12.2%) aged 25 to 44, 973 people (34.8%) aged 45 to 64, and 1,016 people (36.3%) who were 65 years of age or older. The median age was 60.0 years. For every 100 females, there were 94.6 males. For every 100 females age 18 and over, there were 95.8 males. There were 3,048 housing units at an average density of , of which 1,117 (83.0%) were owner-occupied, and 229 (17.0%) were occupied by